diff options
Diffstat (limited to 'bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0420-media-i2c-ov2311-fix-otp-id-read.patch')
| -rw-r--r-- | bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0420-media-i2c-ov2311-fix-otp-id-read.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0420-media-i2c-ov2311-fix-otp-id-read.patch b/bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0420-media-i2c-ov2311-fix-otp-id-read.patch new file mode 100644 index 00000000..9557ae91 --- /dev/null +++ b/bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0420-media-i2c-ov2311-fix-otp-id-read.patch @@ -0,0 +1,51 @@ +From 3ef8db409fb567da880f15a08df5cea08f3f2a45 Mon Sep 17 00:00:00 2001 +From: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +Date: Wed, 18 Sep 2019 14:18:49 +0300 +Subject: [PATCH] media: i2c: ov2311: fix otp id read + +The OTP ID may fail if power rail comes early and imager +get into lpm mode. +Hence read otp id after full setup and stream enable + +Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +--- + drivers/media/i2c/soc_camera/ov2311.c | 7 ++----- + 1 file changed, 2 insertions(+), 5 deletions(-) + +diff --git a/drivers/media/i2c/soc_camera/ov2311.c b/drivers/media/i2c/soc_camera/ov2311.c +index f04f271..c61059d 100644 +--- a/drivers/media/i2c/soc_camera/ov2311.c ++++ b/drivers/media/i2c/soc_camera/ov2311.c +@@ -376,7 +376,6 @@ static void ov2311_otp_id_read(struct i2c_client *client) + struct ov2311_priv *priv = to_ov2311(client); + int i; + +- reg16_write(client, 0x100, 1); + reg16_write(client, 0x3d81, 1); + usleep_range(25000, 25500); /* wait 25 ms */ + +@@ -384,8 +383,6 @@ static void ov2311_otp_id_read(struct i2c_client *client) + /* first 6 bytes are equal on all ov2311 */ + reg16_read(client, 0x7000 + i + 6, &priv->id[i]); + } +- +- reg16_write(client, 0x100, 0); + } + + static ssize_t ov2311_otp_id_show(struct device *dev, +@@ -432,10 +429,10 @@ static int ov2311_initialize(struct i2c_client *client) + + /* check revision */ + reg16_read(client, OV2311_REV, &rev); +- /* Read OTP IDs */ +- ov2311_otp_id_read(client); + /* Program wizard registers */ + ov2311_set_regs(client, ov2311_regs_wizard_r1c, ARRAY_SIZE(ov2311_regs_wizard_r1c)); ++ /* Read OTP IDs */ ++ ov2311_otp_id_read(client); + + dev_info(&client->dev, "ov2311 PID %x (rev %x), res %dx%d, OTP_ID %02x:%02x:%02x:%02x:%02x:%02x\n", + pid, rev, OV2311_MAX_WIDTH, OV2311_MAX_HEIGHT, priv->id[0], priv->id[1], priv->id[2], priv->id[3], priv->id[4], priv->id[5]); +-- +2.7.4 + |